Taliban threaten polio drive in Pakistan, accusing it of being Western attempt to spy on them

The World Health Organisation's anti-polio campaign in Karachi in Pakistan has been stopped after unknown militants gunned down at least five polio vaccination campaigners, four of them women, in separate incidents in and around the city.

The attacks took place during a three-day Unicef drive against polio, which is endemic in Pakistan.

Two women campaigners were on duty in Gulshan-e-Buner on the outskirts of Karachi, when they were shot and killed. Three other workers were killed in Korangi and Baldia towns.

The Taliban have issued threats against the polio drive in Pakistan which they see as a Western attempt to spy on them. However, it is still unclear who was behind the shootings.